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DOWNWASH94:
Combustion Turbine Plume Rise and Building Downwash Model Development

Summary

DOWNWASH94 (Full name: Combustion Turbine Plume Rise and Building Downwash Model Development) was an EPRI-funded program with principal investigator Lloyd Schulman (Sigma Research Corporation). This program was designed to provide data for the development of a new computer model to represent the plume rise and building-induced downwash from power plants, especially those with "less than Good Engineering Practice" stack heights. In particular, the research goal was to define conditions under which the exhaust plume from a combustion turbine would be drawn downward due to the turbulence induced by the structure housing the turbine.

Norman Bowne (ENSR Consulting and Engineering) was the manager for the field phase of this program which, in addition to ASTER, included an auxiliary weather station and tethersonde operated by ENSR and a scanning aerosal LIDAR operated by Norm Nielsen (SRI International). New Jersey Power and Light also operated a Doppler SODAR at a nearby plant. The entire EPRI program also included wind-tunnel and numerical modeling studies of plume rise and downwash.